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Finding the Fourth Proportional to 12,039.92, 16,615.46 and 6,734.92

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Solution

The fourth proportional to 12,039.92, 16,615.46 and 6,734.92 is: 9,294.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,039.92 : 16,615.46 = 6,734.92 : x
  2. Step 2: Convert to fraction form
    12,039.92/16,615.46 = 6,734.92/x
  3. Step 3: Cross multiply
    12,039.92x = 16,615.46 × 6,734.92
  4. Step 4: Simplify right side
    12,039.92x = 111,903,793.86
  5. Step 5: Solve for x
    x = 111,903,793.86/12,039.92
  6. Step 6: Final answer
    x = 9,294.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.